Re: [RT] oops in 4.1.3-rt3

From: Thomas Gleixner
Date: Tue Aug 04 2015 - 08:05:44 EST


On Tue, 4 Aug 2015, Nicholas Mc Guire wrote:
> <snip>
> 3 root -2 0 0 0 0 R 60.3 0.0 5756:16 ksoftirqd/0
> 23 root -2 0 0 0 0 R 50.8 0.0 4948:08 ksoftirqd/2
> 17 root -2 0 0 0 0 S 50.6 0.0 4897:13 ksoftirqd/1
> 29 root -2 0 0 0 0 S 50.4 0.0 4953:24 ksoftirqd/3

So ksoftirqd eats 50+% CPU on each core. On an idle system!?! Any
chance that you can get a function trace snapshot out of it?

Thanks,

tglx
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